Fastening device



NOV. 26 1940. w DARGEQN I 2,222,607

FASTENING DEVICE Filed-April 27, 1938 2 Sheets-Sheet l Thin L.

I A D IN VENTOR G i 3 U HARQLD w. DARGEON j k1 F QM ATT'oRNEY Nov. 26, 1940. DARGEQN 2,222,607

FASTENING DEVICE Filed April 27, 1938 2 Sheets-Sheet 2 INVEN'! JR HAROLD W. DARGEON BY .v m ATTORNEY Patented Nov. 26, 1940 UNITED STATES FASTENING DEVICE Harold W. Dargecn, New York, N. Y. Application April 27, 1938, Serial No. 204,549

1 Claim.

This invention relates to fastening devices and has more particular reference to fastening devices adapted to securely fasten structural openings more especially windows of the casement type. The casement window, because of its conventional construction is difficult to secure effectively against intruders. The usual type of manually operable swinging latch customarily used with this type of window does not afford complete protection even when the window is closed, since the breaking of the, more generally small, glass pane often used in this type of window permits operation of the latch from the outside. The silent operation of this type of Window when unlatched further presents difficulty in ventilat ing the structure with any degree of safety. It

is an object of the present invention to afford a more eflicient and positive lock, more particularly for the casement type of window which can be quickly and easily operated from a position within the structure and which will permit the window to be locked positively, in either closed or ventilating position.

Comprehensively stated the invention comprises a connecting member secured to the window or other movable member to be secured in predetermined position and. movable concurrently with the window relatively to. a fixed unit, the latter being so located with respect to the window as to render access to the unit extremely difiicult from the exterior of the structure.

More specifically stated the. invention comprises a key operated fixed unit including a housing secured to the inside wall of the structure and including a rotatable member adapted to clench a forked connecting member secured to the window.

While several embodiments of the invention are shown in the drawings accompanying this application and forming part thereof, it is to be understood that such embodiments are merely illustrative of the underlying principles of the invention so as to afford a clear understanding thereof to those skilled in the art and are not intended as limiting the invention to the specific form disclosed therein.

In said drawings:

Fig. 1 is a side elevation Fig. 2 is a top plan view partly in section 50 Fig. 3 is a vertical section of one of the elements Fig. 4 is a modification of one of the elements of the invention and Fig. 5 is a modified assembly partly in section.

55 Continuing now by wayof a more detailed description, a diagrammatically represented casement window A is hinged at an exterior point B by an extension hinge strap C as is conventional with this type of window. The present invention is peculiarly adapted, although not limited, to this 5 type of window and afford safety not only when the window is in closed position as shown more particularly in Figs. 1, 2 and 3 but also when in partly open position as shown more particularly in' Fig. 4. Referring more particularly to 10 Figs. 1, 2, and 3 a bracket D has footing flange E inthe form of an angle iron secured to the frame of the casement window A in any convenient manner as, for instance, by the screws F. The bracket projects inwardly from the win- 15 dow frame and forms one wall of afi'xed bracket and is preferably cleared away at G to afford free access to the locking arrangement of the fixed bracket. A forked member H comprising apair of parallel spaced fiat tines J and J having bev- 20 elled ends K and K for conveniently guiding a disc locking head L to a correspondingly shaped recess M formed on the surface of the tines to seat the disc L and to lock the tines thereto. The disc L has its lower face tapered and has 25 depending from its axial center a square headed bolt M preferably integrally formed therewith. The square head or shank of the bolt M fits a correspondingly shaped opening in the top wall M of an anchoring bracket secured to the Win- 30 dow frame or any other convenient stationary part of the structure, the disc and bolt being held against rotation in the anchoring bracket to facilitate locking and to permit longitudinal motion of the disc L and the bolt M relatively 5 to the bracket. The anchoring bracket preferably includes a dependent side wall N for con cealing the manipulating mechanism of the look. In order to pull the disc toward the top wall M" of the bracket and thereby clench it in its corre- 40 spondingly shaped seat or keeper formed at the top surface of the tines, a hollow cylindrical partly conic peripherally knurled nut P is in threaded engagement with the bolt M. A cylindrical opening Q is formed in the upper end of nut P so as to permit the upper circumferential 5 surface of the nut to engage freely the lower surface of the transverse wall M" of the fixed bracket. An auxiliary capstan nut O to lock the nut in place is also threaded on the dependent bolt M below the nut P. A capstan manipulating key includes a center disc R and has an opening S adapted to slip freely over the dependent bolt M. Anupstanding pin T rising from the disc R, is adapted to engage one of the eccentric openings T of the capstan lock nut O the disc R carries a pair of downwardly depending members which are manually operable to rotate the disc and capstan lock-nut O. A manually operable screw U having a knurled head is adapted on rotation to engage the threaded opening in the capstan nut and hold the key in place if desired. When the screw U is engaged with the threaded opening of the capstan nut the key remains in place and the capstan nut may be rotated to free the nut O which in turn permits the nut P to be released. If the nut P is rotated about the dependent bolt M, to feed downwardly the disc is freed and the fork member formed with the bracket and moving with the window may be slid from its seat on the fixed bracket thereby unlocking the window and permitting it to swing on its hinge B. In the type of construction shown in Figs. 1, 2, and 3, the center of rotation on the outside of the window is spaced relatively far from the fixed bracket on the inside of the window so the arc described by the fork H is relatively large. A relatively slight clearance between the inner faces of the tines and the dependent bolt permits the window to swing freely. When a plurality of stops for locking the window in various angular positions are to be used, however, as shown in Fig. 4, the forked member is arranged to swing and to this end the forked strap X shown in Fig. 4 is pivoted at X on a suitable bracket secured to the window in any convenient manner as will be readily understood.

In Fig. 5 the locking arrangement is shown as applied to the vertically operating sash type of window. In this arrangement a fixed bracket Y similar to the fixed bracket shown in Figs. 1,

2, and 3 is secured to the top of one sash and the forked member Y is pivotly mounted on a bracket Z secured to the lower end of the other sash. The forked member when released from the fixed member is swung to the position shown in dotted lines in Fig. 5 and swung to the position shown in full lines in engagement with the appurtenances of the fixed bracket when the window is to be locked.

It is claimed:

An operating device for a window securing mechanism having a forked connecting member secured to the window, an anchoring unit rigidly secured to the window frame and having a top wall an opening therein, a disc having a threaded shank adapted to overlie and cooperatively engage with the forked connecting member when the window is closed, the threaded shank passing through the opening in the top wall of the anchoring unit, and a member threaded on the shank to lock the disc against the forked connecting member; said operating device comprising a center disc having an opening therein" adapted to slip freely over the threaded shank below the threaded member, a projection on said center disc positioned in an eccentric opening in the threaded member, projecting means on said center disc for manually rotating the center disc, and a screw threaded into the threaded member and having a head thereon which is adapted to engage a part of the operating device to hold the same in operative position, removal of the screw permitting removal of the operating device to prevent operation of the threaded member.

HAROLD W. DARG-EON. 

